Patent Search Results

1 8,147,795 Process for preparing boehmitic aluminas having a high .alpha.-conversion temperature
2 8,088,354 Hydrothermal process for the preparation of quasi-crystalline boehmite
3 7,641,887 Alumina-on-alumina composite supports
4 7,638,455 Catalyst and hydrotreating process
5 7,638,105 Nanoporous ultrafine .alpha.-alumina powders and sol-gel process of preparing same
6 7,422,730 Nanoporous ultrafine .alpha.-alumina powders and sol-gel process of preparing same
7 7,351,394 Method for producing .alpha.-alumina powder
8 7,235,224 Process for preparing fine metal oxide particles
9 7,090,824 Mesostructured transition aluminas
10 7,078,010 Method for producing .alpha.-alumina powder
11 6,761,866 Single step process for the synthesis of nanoparticles of ceramic oxide powders
12 6,518,219 Catalyst for hydrorefining fraction oils, its carrier and preparation
13 6,214,312 Process for synthesising aluminas in a basic medium
14 5,855,862 Process for the preparation of an oxide, especially a transition metal oxide
15 5,688,730 Optically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefrom
16 5,302,368 Process for preparation of alumina
17 5,075,265 Preparation of aluminum oxynitride from organosiloxydihaloalanes
18 5,049,371 Process for the preparation of monodisperse ceramic powders
19 5,032,378 Zirconium-doped pseudobehmite, process for its production and use thereof
20 4,937,062 High surface area metal oxide foams and method of producing the same
21 4,797,270 Method for the obtention of an especial alumina from the powder produced in metallurgical alumina calcination
22 4,720,362 Transparent aluminum oxynitride and method of manufacture
23 4,579,729 Wide pore alumina supports
24 4,579,728 Wide pore alumina supports
25 4,562,059 Method of preparing alumina
26 4,555,394 Process for the preparation of alumina
27 4,534,957 Process for converting hydragillite into boehmite
28 4,532,121 Process for the preparation of finely divided aluminas or alumina-magnesia spinels having homogeneous pore structure
29 4,520,116 Transparent aluminum oxynitride and method of manufacture
30 4,492,682 Preparation of ultrapure boehmites and/or pseudo-boehmites
31 4,399,119 Manufacture of spherical alumina from gibbsite
32 4,377,566 Novel process for the preparation of high purity alumina from ammonium alum
33 4,344,928 Process for preparing alumina particulates, at least a fraction of which being ultrafine boehmite
34 4,332,782 Method of producing pseudoboehmite
35 4,320,074 Process for preparing shaped body of alumina
36 4,318,896 Manufacture of alumina particles
37 4,313,923 Method of producing pseudoboehmites
38 4,301,033 High apparent bulk density gamma alumina carrier and method of manufacture of same
39 4,297,325 Method of producing pseudoboehmite from aluminum salt solutions
40 4,292,295 Highly reactive alumina and process for the preparation thereof
41 4,260,589 Production of alumina from aluminum nitrate solutions
42 4,259,311 Decomposition of AlCl.sub.3.6H.sub.2 O in H.sub.2 atmosphere
43 4,248,852 Process for the production of alumina suitable for use as a catalyst carrier
44 4,241,000 Process for producing polycrystalline cubic aluminum oxynitride
45 4,223,000 Decomposition of aluminum nitrate
46 4,177,251 Production of low loose bulk density alumina
47 4,175,118 Method for manufacturing a high porous alumina having a large surface area and a low bulk density
48 4,166,100 Method of preparing granulated activated alumina
49 4,159,313 Alumina agglomerates with good mechanical strength and a method of obtaining them
50 4,151,267 Process for producing alumina